High strain rate in-plane shear behavior of composites

H. L. Gowtham, Jayaram R. Pothnis, G. Ravikumar, N. K. Naik

Research output: Contribution to journalArticlepeer-review

Abstract

Studies are presented on in-plane shear properties of a typical plain weave E-glass/epoxy composite under high strain rate loading. In-plane shear properties were determined with ±45 degree off-axis compression and tension tests using a split Hopkinson pressure bar apparatus. In-plane shear properties are presented as a function of axial and shear strain rates. The range of axial strain rates for off-axis compression tests was 819-2003 per sec, and for off-axis tension tests was 91-180 per sec, whereas the range of shear strain rates for off-axis compression tests was 1388-3442 per sec and for off-axis tension tests was 153-303 per sec. In general, it was observed that in-plane shear strength was enhanced at high strain rate loading compared to that at quasi-static loading. Also, it was observed that in-plane shear strength increased with increasing strain rate within the range of strain rates considered.

Original languageEnglish
Pages (from-to)1334-1341
Number of pages8
JournalPolymer Testing
Volume32
Issue number8
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Compression Tension
  • High strain rate
  • Hopkinson pressure bar
  • In-plane shear properties
  • Off-axis testing
  • Split

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